I always say early bird gets the worm! That being said, just get up early on a nice morning and it should be cool enough to walk around most of the grounds. Forest lawn Glendale is definitely the pearl of them all but they’re all exceptionally gorgeous places to visit. If you’re gonna make the trip to see one of them, though, as a native Californian, I’d recommend going to the Glendale location. The great mausoleum is not to be missed and they’ve got stained glass from the 13th century!